A CPU (Central Processing Unit) is the chip responsible for actually "doing" most the instructions given to a computer.

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Intel HAXM: This computer does not support Execute Disable Bit

I am trying to install Intel HAXM on my machine and receive a message along the lines of: Cannot install This computer does not support Execute Disable Bit XD Looking up my processor on the ...
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1answer
42 views

Is my FPS limited by CPU or graphics card? Rotating 3D surfaces in Matlab

I have a modern laptop. When I use Matlab to visualize a 3D surface with a large number of vertices, I can only get a frame rate around 5 FPS when rotating it. With transparent surfaces, only 1 FPS. ...
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2answers
260 views

Are 64-bit processors “faster” than 32-bit ones, simply because they are 64-bits? [duplicate]

I have pondered that some say "32-bit is old news" because you are limited in RAM without cutting around, such as with PAE. Assuming first that the following factors weigh in on the processor's speed ...
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1answer
65 views

Can a faulty CPU fan affect the screen

I have a Toshiba Satellite L650D laptop, which for some reason doesn't really want to work any more. Basically, if I start it up, the screen doesn't show squat. As far as I can tell it doesn't even ...
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2answers
96 views

CPU power states and temperature spikes

i just noticed something really unusual on my brand new (slightly used) ASUS N550JV. During my first checks in general performance and etc, i noticed that the temperatures were unusually high for a ...
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1answer
142 views

How can I find the temperature of an integrated graphics card?

I recently got a new laptop with an integrated graphics chip (Intel HD 4400) and was wondering what my temps for that were. Here is my HWMonitor: Is the temp the same as the temperatures of the ...
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1answer
271 views

Dell Inspiron N5110 Overheats and Shuts Down from Past few Days

I have a Dell Inspiron N5110 with a 2.5Ghz i5-2450M processor, 4GB RAM and 1GB nVidia Graphics card running Windows 7 Home Premium, that's about 2 years old now. When I previously used to play games ...
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1answer
244 views

Processors cache L1, L2 and L3 are all made of SRAM?

Are Processor caches L1, L2 and L3 all made of SRAM? If true, why L1 is faster than L2 and L2 is faster than L3? I did not understand this part when I read about them.
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38 views

Instruction cache vs data cache with reguards to size

In the context of cache for a CPU, I understand some are divided between instructions and for data. How exactly are they divided? Is one physical unit partitioned into two or are there two units ...
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45 views

How is CPU time measured on Windows?

I am currently creating a program which identifies processes which are hung/out-of-control, and using an entire CPU core. The program then terminates them, so the CPU usage can be kept under control. ...
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89 views

Ubuntu- Set maximum CPU speed

How do I set the CPU for ubuntu server 12.04 to the maximum all the time? CPU Settings as below: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 44 model ...
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1answer
121 views

35% Maximum Frequency in the Windows Resource Monitor

I have a problem with my CPU as it runs over 100% on battery yet it doesn't go beyond 35% when plugged in. Yes, I've checked power management options like a million times for high performance and ...
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60 views

CPU Voltage: different values in BIOS and OS

I manually set CPU voltage to 1.1000 V in BIOS (Advanced Screen > CPU Configuration > Multiplier/Voltage Change > CPU Voltage). After reboot I see in BIOS (Vcore in H/W Monitor screen) that it is ...
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1answer
53 views

Why is this computer hissing and not powering on?

I work in IT and I'm having this issue with a few of the PCs in my realm. They won't power on at all, fans don't spin up, no beeps of any kind. But when the PSUs are plugged in, they hiss. Faintly, ...
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1answer
84 views

Trouble installing an AMD CPU to socket G34 motherboard

I have the following supermicro motherboard which I am having some issues installing a CPU into. The CPU is as follows Opteron 6386 SE Part Number OS6386YETGGHK 6300-series "Abu Dhabi" (32 nm) The ...
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1answer
86 views

Powerful computer runs very slow for short intervals

I think this is the best place to put this question, but I'm not sure. Basically, my computer will run very slow every once in a while but then everything goes back to normal (for example, I will type ...
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1answer
52 views

x32 and x64 architecture difference in operating with numbers

For example in Java programming language we can use int (32 bit) or long (64 bit) values. As I understood 32 bit cpu can operate with 32 bit numbers in one cycle. There is 32-bit and 64-bit cpu's. So ...
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119 views

How does the Package Power Limit affect the cpu clock

This is primarily about Intel 4th Generation Core (Haswell) CPUs. As far as I understand it, the Turbo Boost technology raises the CPU frequency until it hits the TDP limit (though it might exceed it ...
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2answers
464 views

How does Intel Turbo Boost work?

I just got a new Intel CPU, and the specifications say 3.5GHz but with turbo boost to 3.9GHz. What does Intel Turbo Boost do? From the description it sounds like they are saying "The road's speed ...
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1answer
145 views

Force a program to consume at most x% of CPU time [duplicate]

Is there a way to force a specific program to use less than 100% processor time even when the CPU would be idle otherwise? Using process priority, we can adjust how much resources a given program ...
1
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1answer
18 views

I need to swap harddisk [closed]

I had some motherboard issues so i bought a cpu for seconds which has 500 gb hard disk with windows professional os. Now i need to swap this 500 gb hard disk with my older 1tb hard disk which has ...
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28 views

probe processor voltage in linux

I am in a redhat server I've tried to use lm-sensors to detect my processor's voltage, just like CPU-Z in windows environment. But after I using the command "sensor-detect", only processor's ...
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1answer
760 views

How to re-enable AMD Turbo Core

I have Sony Vaio Fit 15e (Canadian model around May 2013) with AMD A10-5745M, 2.10 GHz quad core. Because of AMD Turbo Core, the CPU runs upto 2.70 GHz when plugged in, but the problem is that if I ...
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1answer
46 views

How do I know which is the fastest processor which is supported by a specific chipset?

I have an old laptop, I want to upgrade my cpu or motherboard, but don't know the knowledge of computer hardware .I have added a 4g memory and cleaned my fan. Can I upgrade a laptop Mobile Intel® HM55 ...
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32 views

CPU core overload? Audio randomly glitch for 1-2 seconds

I don't know why I have random glitches while listening to audio lately, it never happened before. My computer is rather good, and memory is enough: 6GB ram / 4 cpu. In order to find the problem, I ...
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1answer
98 views

Do I really need quad-core or 6-core processor for small office data server? [closed]

I am building a computer that will serve as a networked data storage server for a small office. It will not be used by a human on day-to-day basis like a traditional machine. It will not be doing any ...
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1answer
136 views

1080p 10bit MKV Video is Choppy but Has Smaller File-size?

I've tried VLC, MPC-HC with LAV and CCCP but nothing worked for 1080p 10bit MKV. The video is not always choppy but only during some particular scenes with high content bitrate. I've got 2 versions ...
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1answer
44 views

Same Code, Different Computers - Counterintuitive and HUGE Differences in Performance

TL;DR: I'm doing some performance computing, and I've found that the ostensibly 'weaker' machine is outperforming the 'stronger' machine by orders of magnitude. Why? I wrote some C code for a ...
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1answer
56 views

Quick, intermittent buzzing sound and freezing

I've recently been having this issue with my desktop PC. When I'm playing games, or watching videos, every now and then I hear a buzzing noise from my headphones and the video/game freezes for a split ...
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76 views

Game keeps overheating laptop?

I have an Acer TravelMate laptop.Recently I installed Portal 1 and whenever I play it, the CPU gets hotter and hotter until the computer is forced to shut down. With normal use (and even when there's ...
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2answers
424 views

Does Internet speed depends on processor?

I'm about to purchase tablet computer. My main purpose will be to browse Internet. So, please tell whether the processor speed has to do anything with the Internet speed. Different tablets have ...
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111 views

Tradeoff: CPU Clock Speed vs Cache [closed]

If you had two choices in processors, one with 2.7GHz @ 6M cache, and the other with 3.0GHz @ 4M cache, which do you choose? This is not a shopping question, what I'm looking for is a general rule ...
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1answer
39 views

Virtual Machine Implementation similar to the JVM [closed]

I'd just like some information about how best to implement a virtual machine. I'd just like to know a couple of things: Is a VM more like a Virtual Computer or a Virtual Processor? What are some ...
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482 views

Incorrect CPU speed in Windows 8.1

I have recently tried to overclock a AMD Athlon II X2 270 on a MSI GF615M-P33 V2 motherboard. I changed the FSB from 200 to 206, that's an increase of 102 MHZ from 3.4 GHZ.. no biggie. On reboot I got ...
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27 views

Maximum Frequency in Resource Monitor is off the clock but CPU is only 25%

What I noticed is that my CPU fan starts going mad when I run CyberGhost's VPN software and yet when I look at the total CPU usage in task manager it says that it ticking over at about 25% and both ...
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2answers
51 views

Are all peripherals directly connected to system bus?

System bus has control, address and data buses, as we can see in this picture I think the front-side bus and memory bus is directly on the system bus, but what about the PCIExpress and PCI buses, ...
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1answer
65 views

CPU heating too much, cpufrequtils to limit its speed works weird

I am using an Intel i5 powered laptop and my OS is a 64 bit Linux Mint 14, kernel version 3.5.0-43. Up until now the CPU usage policy was ondemand and it usually was working at 2.40Ghz. In this setup ...
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742 views

Whats the link between security and processors

So I have been on the web for a while today and came across the intel xeon processors. In the feature list, it mentions security. I remember in many other places, I've seen security somehow linked ...
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134 views

Does VLC Player run on multi core machine?

I notice that in the VLC web page, it mention that it can: With faster decoding on multi-core, GPU, and mobile hardware and the ability to open more formats, notably professional, HD and 10bits ...
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91 views

FFMpeg very slow on i3 Windows machine

I have a mystery. I am using ffmpeg.exe to convert videos to frames. On most machines I get very good speed. On an i7 I get 144fps. On an old Core 2 Duo machine I get 75fps. But weirdly on an fairly ...
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1answer
32 views

How do I get my CPU off the MoBo if the paste is gluey?

I have a Phenom II 965 Black Edition. Those come with Fans with Thermal paste pre-applied. So I always just put it on without thinking much about it. However, when I bought it, it was a fast shot ...
2
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1answer
42 views

Computer boot up operations up to loading of bootloader

I am learning about developing your own operating system. I am aware of what happens once the boot loader is loaded, since I anyway write it myself. However, what operations happen between pressing of ...
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23 views

Command to get associated threads for pid in OSX

In Linux I can use one of the following ps -p pid -L -o pid,tid,%cpu,%mem ps -C command -L -o pid,tid %cpu,%mem What is the equivalent command for OS X ?.
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449 views

normal motherboard and CPU temprature

What is normal temperature of motherboard and CPU ? Details : Model : Toshiba SATELLITE T130 Mainboard : Toshiba SATELLITE T130 Total Memory : 3.84GB DDR3 SO-DIMM Processor : Genuine Intel(R) CPU ...
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36 views

Gateway md2614u won"t turn on with both memory ram slots filled

All of sudden laptop cut off.When i would turn it on it had a black screen,but the lights on keyboard,and fan worked.I thought it was a goner.Well figured i'd try taking one memory ram out to see if ...
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1answer
72 views

What to do with extra prosessor with Windows 8.1 (non-professional)? [closed]

My desktop workstation has two quad core processors. I recently installed Windows 8.1, and I found that without the Professional version of Windows 8 you can only use one socket here: How many ...
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35 views

how does the CPU read from RAM?

if I understand correctly, when a CPU communicates with ram over a parallel memory bus, the cpu applies voltage to the address conductors to set the address, then it applies voltage to the control ...
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526 views

What is AUXTIN temperature indicated by CPUID HWMonitor on ASUSTeK P7P55-M motherboard?

CPUID HWMonitor saying I have high temperature on AUXTIN entry Temperature value is "jumping" in the range +- 10 degrees which hints it is false indication. What is this?
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1answer
60 views

MACHINE_CHECK_EXCEPTION, Windows7

3 year old Notebook HP Pavilion dv7 is displaying an error which is: MACHINE_CHECK_EXCEPTION STOP: 0x0000009C (0x0000000000000000, 0xFFFFF880009F1C70, 0x0000000000000000, ...
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2answers
105 views

Again about Hyper Threading

I have Asus 1025c with dual-core atom with hyper-threading enabled. When I play games, processor load rate always less than 25% (1 core). Is that means, that game (running single thread) occupies only ...